needs help regarding preparations for final exam

i cleared my ipcc in nov 2010... my final exam will be due in nov 2013... seniors in my office is asking me to join classes from now itself..... but in my city there are no good coaching classes.... am thinking of doing self study now and joining some crash courses before my exams.... i need ur opinion regarding this decision....and can u pls tell me some authors book with which it will be easy for me to do self study...............